Self-opening door damping hinge

Abstract

The utility model provides a self-door-opening damping hinge which comprises a fixing base installed on a box body and a swing arm installed on a door body, the swing arm is hinged to the fixing base in a matched mode through a main shaft, and the fixing base is provided with a connecting frame which is used for relatively moving back and forth along with swing of the swing arm. The connecting frame is provided with a damping assembly which has a door opening damping effect while the door body can be automatically opened, a main body of the damping assembly is fixed to the fixing base, and a movable part of the damping assembly is connected to the connecting frame. The structure is simple, assembling is easy, compressive strength is high, transmission is stable, automatic opening and door opening damping effects are achieved, and the use quality of products is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to hinge technical field, specifically a self -opening door damping hinge. BACKGROUND

[0002] The existing hinge is widely used in furniture, appliance, especially oven, the hinge is hinged between the box body and the door body, the existing hinge, its structure generally includes the swing arm installed on the door body, the fixed seat installed in the box body and the transmission assembly hinged between the swing arm and the fixed seat, the transmission assembly is installed with spring assembly, utilizes the tension or elastic force of spring assembly, realizes the opening and closing of the door body.

[0003] However, the hinge with the above structure has the following deficiencies in practical application:

[0004] 1) The existing hinge structure is complex, the assembly requires high precision, and the manufacturing cost is high.

[0005] 2) The existing hinge is difficult to open and operate when the door body load is large, and the door body runs quickly when rotating, causing a large impact sound between the door body and the box body.

[0006] 3) The existing hinge has a complex transmission structure, is prone to shaking during operation, has poor transmission stability, and affects the service life of the product. INVENTION CONTENT

[0007] The utility model discloses a self -opening door damping hinge, simple structure, easy to assemble, high compressive strength, stable transmission, and with self -help open door, also have the opening damping effect, ensure the use quality of product.

[0008] The utility model discloses a self -opening door damping hinge, simple structure, easy to assemble, high compressive strength, stable transmission, and with self -help open door, also have the opening damping effect, ensure the use quality of product.

[0009] According to the optimization, the damping assembly includes a damper and a spring, the cylinder body of the damper is fixed on the fixed seat by a fixed pin, the push rod of the damper is connected to the connecting frame, the spring is sleeved on the push rod of the damper and has two elastic ends connected to the push rod and the cylinder body of the damper respectively, and the connecting frame is provided with a sliding groove for relative movement of the fixed pin.

[0010] According to the optimization, the shape of the sliding groove is consistent with the swing track of the swing arm.

[0011] According to the optimization, the front and rear sides of the connecting frame are folded inward to form a placement cavity for placing a damper, and a pushing rod of the damper is pressed against the rear side wall of the placement cavity.

[0012] According to the optimization, the connecting frame is provided with a guide protrusion for smoothly moving relative to the fixed seat, and the fixed seat is provided with a guide groove in sliding connection with the guide protrusion.

[0013] According to the optimization, the front end of the connecting frame is provided with a limiting shaft for limiting the opening amplitude of the swing arm, and the swing arm is provided with a limiting recess connected with the limiting shaft when the door body is fully opened.

[0014] The utility model discloses the advantages are in:

[0015] 1) through the damper of damping combination spare, spring and swing arm, the structure cooperation of connecting frame, fixed seat, when the door body opens, under the action of spring, push swing arm to drive connecting frame to move, reach the automatic opening of door body, when opening to specific angle, connecting frame will damper compression work, realize the damping effect of opening door, effectively reduce the noise generation, ensure product use quality.

[0016] 2) adopt the connecting frame of this structure, convenient assembly, simplify transmission structure, promote transmission stability, strengthen the compression strength again, guarantee the use effect of hinge. BRIEF DESCRIPTION OF DRAWINGS

[0017] ATTACH Fig. 1 It is the structural schematic diagram of the open state of the preferable embodiment of the utility model.

[0018] ATTACH Fig. 2 It is the partial cutaway view of the open state of the preferable embodiment of the utility model.

[0019] ATTACH Fig. 3 It is the sectional view of the open state of the preferable embodiment of the utility model.

[0020] ATTACH Fig. 4 It is the structural schematic diagram of the closed state of the preferable embodiment of the utility model.

[0021] ATTACH Fig. 5 It is the exploded view of the closed state of the preferable embodiment of the utility model. DETAILED DESCRIPTION

[0022] The utility model will be further described below in combination with the drawings.

[0023] According to the drawings Figs. 1 to 5As shown in the figure, the self-opening door damping hinge of the utility model, which comprises a fixed seat 1 installed on a box body and a swing arm 2 installed on a door body, is adapted to be hingedly connected through a main shaft 3. The fixed seat 1 is provided with a connecting frame 4 for moving forward and backward with the swing arm 2. The connecting frame 4 is provided with a damping assembly 5 for automatically opening the door body and having a door opening damping effect. The main body of the damping assembly 5 is fixed on the fixed seat 1, and the movable part of the damping assembly 5 is connected to the connecting frame 4.

[0024] In practical application, the damping assembly 5 comprises a damper 51 and a spring 52. The cylinder body of the damper 51 is fixed on the fixed seat 1 through a fixed pin 6, and the push rod of the damper 51 is connected to the connecting frame 4. The spring 52 is sleeved on the push rod of the damper 51, and the two elastic ends of the spring 52 are connected to the push rod and the cylinder body of the damper 51 respectively. The connecting frame 4 is provided with a sliding groove 41 for the relative movement of the fixed pin 6.

[0025] That is, during opening, the swing arm 2 swings outward with the door body, the swing arm 2 swings outward with the door body, the spring 52 exerts an elastic force on the push rod of the damper 51, thereby pushing the connecting frame 4 to move forward smoothly with the cylinder body of the damper 51 being fixed on the fixed seat 1 through the fixed pin 6, so that the sliding groove 41 of the connecting frame 4 moves forward smoothly relative to the fixed pin 6, so that the connecting frame 4 moves forward relative to the fixed seat 1, thereby realizing automatic opening of the door body and convenient operation. When the swing arm 2 is opened to a specific position, the rear side of the connecting frame 4 pushes the push rod of the damper 51, so that the damper 51 is compressed to work, thereby generating a damping force and transmitting the damping force to the swing arm 2 through the connecting frame 4, thereby realizing a door opening damping effect, reducing noise generated during opening, and protecting the hinge. Similarly, when the door body is closed, the door body drives the swing arm 2 to swing inward, thereby pushing the connecting frame 4 to move backward while overcoming the elastic force of the spring, thereby realizing closing of the door body.

[0026] Referring to Figs. 1 to 5 Further refinement is shown in the figure. The shape of the sliding groove 41 is consistent with the swing trajectory of the swing arm 2. The shape of the sliding groove 41 of the structure is shown in the figure, which ensures smooth and stable sliding of the connecting frame 4, and the arc position of the sliding groove 41 can lock the fixed pin 6, thereby locking the connecting frame 4 on the fixed seat 1 when the door is closed.

[0027] In addition, the front end of the connecting frame 4 is provided with a limiting shaft 7 for limiting the opening amplitude of the swing arm 2, and the swing arm 2 is provided with a limiting recess 21 connected with the limiting shaft 7 when the door body is fully opened. The structure of the limiting shaft 7 and the limiting recess 21 can lock the limiting shaft 7 in the limiting recess 21 after the door body is fully opened, so as to lock the connecting frame 4 on the fixed seat 1 when the door is opened.

[0028] Referring to Figs. 1 to 5As shown, the front and rear sides of the connecting frame 4 are further folded inward to form a placing cavity 42 for placing the damper 51, and a pushing rod of the damper 51 is pressed against the rear side wall of the placing cavity 42.

[0029] Moreover, the connecting frame 4 is provided with a guiding protrusion 43 for smoothly moving relative to the fixed base 1, and the fixed base 1 is provided with a guiding groove 11 for slidingly connecting with the guiding protrusion 43.

[0030] The connecting frame 4 with the structure is convenient to assemble, simplifies the transmission structure, improves the transmission stability, strengthens the compression strength, and guarantees the use effect of the hinge.

[0031] The above specific embodiments are only specific embodiments with better effects of the utility model, and any structure identical or equivalent to the self-opening door damper hinge is within the protection scope of the utility model.

Claims

1. A self-opening door damping hinge, comprising a fixed seat (1) mounted on a cabinet and a swing arm (2) mounted on a door body, the swing arm (2) is adapted to be hinged with the fixed seat (1) through a main shaft (3), characterized in that: The fixed seat (1) is provided with a connecting frame (4) for moving forward and backward with the swing arm (2) swinging, the connecting frame (4) is provided with a damping assembly (5) for automatically opening the door body and having a door opening damping effect, the main body of the damping assembly (5) is fixed on the fixed seat (1), and the movable part of the damping assembly (5) is connected to the connecting frame (4).

2. The self-opening door damping hinge according to claim 1, wherein: The damping assembly (5) comprises a damper (51) and a spring (52), the cylinder body of the damper (51) is fixed on the fixed seat (1) through a fixed pin (6), the push rod of the damper (51) is connected to the connecting frame (4), the spring (52) is sleeved on the push rod of the damper (51) and the two elastic ends thereof are connected to the push rod and the cylinder body of the damper (51) respectively, and the connecting frame (4) is provided with a sliding groove (41) for the relative movement of the fixed pin (6).

3. The self-opening door damping hinge according to claim 2, wherein: The shape of the sliding groove (41) is consistent with the swing track of the swing arm (2).

4. The self-opening door damping hinge according to claim 2, wherein: The front and rear sides of the connecting frame (4) are inwardly folded to form a placing cavity (42) for placing the damper (51), and the push rod of the damper (51) is pressed against the rear side wall of the placing cavity (42).

5. The self-opening damper hinge according to claim 1, wherein: The connecting frame (4) is provided with a guide protrusion (43) for smoothly moving forward and backward relative to the fixed seat (1), and the fixed seat (1) is provided with a guide channel (11) slidably connected with the guide protrusion (43).

6. The self-opening damper hinge according to claim 1, wherein: The front end of the connecting frame (4) is provided with a limiting shaft (7) for limiting the opening amplitude of the swing arm (2), and the swing arm (2) is provided with a limiting recess (21) connected with the limiting shaft (7) when the door body is completely opened.

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